The radioactive substance found in the body had not reached toxic levels that could result in Pushkar's death.

The FBI lab forensic reports of the viscera sample of Sunanda Pushkar, late wife of Indian politician Shashi Tharoor, have ruled out the angle of death by polonium or any other radioactive substance.

Delhi Police Commissioner B.S. Bassi on Wednesday said that radiation levels in samples drawn from Sunanda Pushkar - Congress leader Shashi Tharoor's wife who died in a Delhi hotel under mysterious circumstances - were within safety norms.